scholarly journals Concentration of Aqueous Residue from Isada Krill Using Freezing-Thawing Technique

2019 ◽  
Vol 20 (3) ◽  
pp. 115-119
Author(s):  
Shuji ADACHI ◽  
Yayoi MIYAGAWA ◽  
Hidefumi YOSHII
Keyword(s):  
Aqueous Residue

In Vitro and In Vivo Neutralizing Activity of Uvaria chamae Leaves Fractions on the Venom of Naja nigricollis in Albino Rat and Bovine Blood

2020 ◽  
Vol 14 (4) ◽  
pp. 295-311
Author(s):  
Ada Gabriel ◽  
Mamman Mohammed ◽  
Mohammed G. Magaji ◽  
Yusuf P. Ofemile ◽  
Ameh P. Matthew ◽  
...  
Keyword(s):  
Ethyl Acetate ◽  
Neglected Tropical Diseases ◽  
Lethal Dose ◽  
Positive Control ◽  
Haemolytic Activity ◽  
Cytotoxic Activities ◽  
Albino Rat ◽  
Aqueous Residue

Background: Snakebite envenomation is a global priority ranked top among other neglected tropical diseases. There is a folkloric claim that Uvaria chamae is beneficial for the management of snakebite and wounds in African ethnobotanical surveys. Besides, there are many registered patents asserting the health benefits of U. chamae. Objective: This study aimed to investigate U. chamae’s potentials and identify candidates for the development of tools for the treatment and management of N. nigricollis envenomation. Methods: Freshly collected U. chamae leaves were air-dried, powdered, and extracted in methanol. The median lethal dose of the extract was determined and further fractionated with n-hexane, n-butanol and ethyl acetate. Each fraction was tested for neutralizing effect against venom-induced haemolytic, fibrinolytic, hemorrhagic, and cytotoxic activities. Results: U. chamae fractions significantly (p<0.05) neutralized the haemolytic activity of N. nigricollis venom in n-butanol; 31.40%, n-hexane; 33%, aqueous residue; 39.60% and ethyl acetate; 40.70% at the concentration of 100mg/ml of each fraction against 10mg/ml of the snake venom when compared to the positive control. The fibrinolytic activity of N. nigricollis venom was significantly (p<0.05) neutralized in n-hexane at 73.88%, n-butanol; 72.22% and aqueous residue; 72.22% by the fractions of U. chamae. In addition, haemorrhagic activity of N. nigricollis venom was significantly (p<0.05) neutralized by U. chamae fractions at the concentrations of 100mg/ml, 200mg/ml and 400mg/ml except for n-butanol and aqueous residues at 400 mg/ml. Conclusion: U. chamae leaves fractions possess a high level of protection against N. nigricollis venoms-induced lethality and thus validate the pharmacological rationale for its usage in the management of N. nigricollis envenomation.

Toxicological parameters of aqueous residue after using Plectranthus neochilus for 2,4-D phytoremediation

Chemosphere ◽  
2020 ◽  
pp. 128638
Author(s):  
Bruna Piaia Ramborger ◽  
Maria Elizabeth Gomes Paz ◽  
Ketelin Monique Cavalheiro Kieling ◽  
Murilo Ricardo Sigal Carriço ◽  
Gabriel de Paula Gollino ◽  
...  
Keyword(s):  
Aqueous Residue

Larvicidal Activity of Myrtaceae Essential Oils and Their Components Against Aedes aegypti, Acute Toxicity on Daphnia magna, and Aqueous Residue

2011 ◽  
Vol 48 (2) ◽  
pp. 405-410 ◽  
Author(s):  
Hye-Mi Park ◽  
Junheon Kim ◽  
Kyu-Sik Chang ◽  
Byung-Seok Kim ◽  
Yu-Jung Yang ◽  
...  
Keyword(s):  
Acute Toxicity ◽  
Aedes Aegypti ◽  
Essential Oils ◽  
Daphnia Magna ◽  
Larvicidal Activity ◽  
Aqueous Residue

scholarly journals Preparation of Powdered Seasoning with Shrimp-like Flavor from the Aqueous Residue of Isada Krill by Subcritical Water Treatment and Spray-drying

2019 ◽  
Vol 20 (4) ◽  
pp. 137-141
Author(s):  
Shuji ADACHI ◽  
Jose Antonio FERMIN JIMENEZ ◽  
Hermawan Dwi ARIYANTO ◽  
Yayoi MIYAGAWA ◽  
Hidefumi YOSHII
Keyword(s):  
Water Treatment ◽  
Spray Drying ◽  
Subcritical Water ◽  
Aqueous Residue

Wastewater to Ecological dyeing process and bioactive compounds resources: case study of Dittrichia graveolens hydrodistillation aqueous residue

2020 ◽  
Author(s):  
Nawres Gharred ◽  
Noureddine Baaka ◽  
Nadir Bettache ◽  
Assia Hamdi ◽  
Amal Dbeibia ◽  
...  
Keyword(s):  
High Performance ◽  
Biological Activities ◽  
Value Added ◽  
Extraction Process ◽  
Phytochemical Study ◽  
Dyeing Process ◽  
Aqueous Residue ◽  
Real Risk ◽  
Biological Potential

Abstract The release of aqueous residues generated by the extraction process of essential oils presents a real risk of environmental pollution. This work aims to reduce this risk and produce value-added materials. The aqueous residue of Dittrichia graveolens (D. graveolens) hydrodistillation has been reused in two valorization ways: 1/ in the ecological dyeing. 2/ in biological field. First, a phytochemical study of the aqueous residue was carried out by determining the ployphenols and flavonoids content and high performance liquid chromatography (HPLC) analysis. Second, the eco-dyeing process with the aqueous residue was performed on the polyamide fabric, the process was optimized by the surface response methodology using Minitab software and was evaluated by the fastness tests for the optimal conditions. Third, the aqueous residue was assessed for its biological activities. Promising coloring power and biological potential of the aqueous residue showed that this last could be an important source for developing environmentally friendly natural dyes and bioactive products.

scholarly journals Antioxidant Effects, Antiproliferative Effects, and Molecular Docking of Clinacanthus nutans Leaf Extracts

Molecules ◽  
2020 ◽  
Vol 25 (9) ◽  
pp. 2067
Author(s):  
Noor Zafirah Ismail ◽  
Zaleha Md Toha ◽  
Musthahimah Muhamad ◽  
Nik Nur Syazni Nik Mohamed Kamal ◽  
Nur Nadhirah Mohamad Zain ◽  
...  
Keyword(s):  
Molecular Docking ◽  
Docking Simulation ◽  
Gas Chromatography Mass Spectrometry ◽  
Total Phenolic ◽  
Scavenging Activity ◽  
Anticancer Activities ◽  
Leaf Extracts ◽  
Antiproliferative Effects ◽  
Aqueous Residue ◽  
Clinacanthus Nutans

Clinacanthus nutans is a well-known herb that has been used as an alternative and therapeutic medicine, however more selective C. nutans extracts are needed. In this study, leaves were extracted with 80% methanol and further fractionated with n-hexane, dichloromethane, chloroform, n-butanol, and aqueous residue. Subsequently, the total phenolic content (TPC), total flavonoid content (TFC), antioxidant scavenging activity, and antiproliferative effects on breast cancer (Michigan Cancer Foundation-7 [MCF7]) and normal breast (Michigan Cancer Foundation-10A [MCF 10A]) cells of the extracts were measured. Additionally, molecular docking simulation of the major compounds from C. nutans extracts was conducted. The aqueous residue had the highest TPC and TFC, whereas the crude extract had the highest scavenging activity. Among the extracts, dichloromethane extract (CN-Dcm) was selected as it had the highest selectivity index (SI) (1.48). Then, the chosen extract (CN-Dcm) was proceed for further analysis. The compounds from CN-Dcm were identified using gas chromatography–mass spectrometry (GC-MS). The major compounds from CN-Dcm were further investigated through molecular docking studies. Palmitic acid and linolenyl alcohol were the compounds found in the CN-Dcm extract that exhibited the highest binding affinities with p53-binding protein Mdm-2. These results highlight the potential of C. nutans as a source of anticancer activities.

INCREASE ON INCINERATION CAPACITY AND NOXCONTROL FOR AIR ENRICHMENT IN THE EXPERIMENTAL SIMULATION OF AQUEOUS RESIDUE INCINERATION

2004 ◽  
Vol 176 (7) ◽  
pp. 1117-1152 ◽  
Author(s):  
P. T. LACAVA ◽  
A. P. PIMENTA ◽  
J. A. CARVALHO ◽  
M. A. FERREIRA
Keyword(s):  
Experimental Simulation ◽  
Aqueous Residue
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